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. 2002 Mar 15;22(6):2283–2298. doi: 10.1523/JNEUROSCI.22-06-02283.2002

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Fig. 9. — Skin deformations caused by mechanical stimulation and P cell intracellular stimulation. A, Optical flow induced by mechanical stimulation (20 mN for 300 msec;circle) in the ventral side of the segment. TheX is the location of the singular point. Thebottom traces show stimulus duration and the ventral P cell response. B, Optical flow induced by ventral P cell intracellular stimulation; note marked similarity. C, Optical flow and dorsal P cell response induced by mechanical stimulation (20 mN for 200 msec) in the dorsal side of the segment. Symbols as in A. D, Optical flow induced by dorsal P cell intracellular stimulation; note marked similarity. The width of the annuli is ∼0.9 mm.